K buchanan



F. BUCHANAN.

HEADLIGHT.

APPucATwN FILED JAN.23. wis.

Patented Aug. 15,1916.

2 SHEETS-SHEET l.

. WkTNESSES .i 4 f l lWHA/'5551555 F. BUCHANAN. 4

HEADLIGHT.

APPLICATION FILED IAN. 23. 1915.'

PaIenIed Augi15, 1916.

v2 SHEETS-SHEET 2.

JN VEN T01?.

M/MMX BY /MA gw UNITED sTATEs PATENT oEErcE.

I FRANK BUCHANAN, OF SYRACUSE, NEW YORK.

HEADLIGHT.

To all 'fw/1,0m it may concern/ Be it known that I, FRANK BUCHANAN, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of New York, have invented a certain new and useful Headlight, of which the following is a specification.

This invention relates to headlights, and has for its object a particularly simple and efficient means for supporting a plurality of lenses; and it consists in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the 4accompanying drawings, in which like charactersI designate corresponding parts in all the views.

Figure 1 is a face View of this headlight, the door being` shown. as swung open. Fig. 2is a sectional view, the door being shown as closed in full lines, and as open in dotted lines. Fig. 3 is an inner face view of the door showing the operation of the retaining ring for the inner lens. Fig. 4 is an enlarged Yfragmentary view taken on the plane of lineA-A, Fig. j

This' invention comprises, generally, a casing open at its front'side, a movable door for the open front side, and a plu-l rality of lenses supported by the door. In addition, the invention preferably includes aparticularly simple and efficient means for supporting one lens by means of whichA it can beremoved in order to be replaced by another lens.

1 is the casingwhich is here shown as4 cylindrical in general form and as having a peripheral annular flange 2 midway be- -tween its front and rear ends, and as havjecting from the 'rear sidethereof, a frame.

element 8 mounted on the spacing means and having a central opening, a ring 9 coacting with the fframe element 8, and

lenses 10, 11 carried, respectively, by the body 5 and by the frameelement 8, the lens l`0 being clamped between the lring member` Specification of Letters Patent.

. Patented Aug. 15, 1916.

6 and the body 5and the lens l1 being clamped between the frame element 8 and the ring 9. The body 5 is formed with suitable hinge leaves 12' connected by a hinge pin 13 to complemental hinge leaves 14 on the casing 1, and said body is also' provided with outwardly'e'xtending lugs 15A having open-ended slots 16 therein which receive pivoted screws 17 provided on the casing l. The screws17 thread into ymembers 18-which pivotally support the screws, the members 18 being pivoted to lugs 19 on the casing 1, and being bifurcated and extending on opposite sides' of the lugs 19. The heads of the screws 17 bear against the faces of the lugs 15 when the door is closed.

The body 5 is formed with an annular groove 20 around its lens-opening; the lens 10 is provided witha marginal flange or bead which is seated in said groove; and the ring member 6 is arranged to hold said margin in the groove,.the margin being protected by a suitable wrapper or liller 2l;`

The ring member 6 is held in position by suitable screws 22 and is also formed with a cylindrical shield 23 which extends in front of the lens. The frame element 8 is in the form of a ring having laterally` exsecured to the postsby lscrews 24. The

frame element 8 is also formed with an annular face and with'a suitable seat or groove 25 for the lens 11. The ring 9 is opposed to the annular face of the frame element 8 and clamps the marginal flange.

26 on the lens 11 between the frame element and said ring. Said ring 9 is pivoted to the element 8 on a pivot extending transversely through the ring 9 and 'into the frame element 8, that is, parallel'to the axis of the lens, whereby the ring canv be moved on its pivot in a plane parallel to .the frame element 8, that is, crosswise of the axis of the` lens 1 1. The ring 9 is held by sprlng means in its operative position. In the illustrated form of this ring, it is formed with diametrically opposite ears 27, 28 through one of whichfthe pivot extends, and at the other of which the ring is held from opening movement, the spring means being locatedY .at said ears 27, 28.

29 sthe pvot which consists of a screw or pin extending through .the ear 27 and into one of the lugs 24 of the frame element .8, the pivot being here shown -as combined with one of the spring pressedv means.`

l Said means includes a cup 30 mounted on the pivot and bearing on the outer face of the ear 27, and a spring 31 in the cup and bearing against the head of the screw and against the bottom of the cup. Preferably, a sleeve 32 surrounds thepin 29 and bears against the head of the pin 29 and .against the face of the frame element S, said lsleeve being secured to the ring 9. The cup is also provided with an annular or laterally extending flange 33.

The spring normally presses against the bottom of the cup and hence presses the earv 27'toward the face of the frame element 8. When it is desired to relieve the ring' 9 of the pressure, in order that 'it may be moved about -its pivot when the other .spring pressed means associated with the ear'28 is operated, the operator presses his thumb on the head of the pinor screw 29 and engages Bare formed on their -opposing sides with prismatic zones, the effect of the lens 11-being to gather all the light rays from lthe lamp and scatter the same over the rear face of the lens 10 which refracts the rays and projects them forwardly in a shaft composed of-parallel rays.

The lamp -37 is located so that its filament or source of light is at the focal v axis of the lens 10, and in order that it may be accurately arranged the lamp socket 38 thereof is'adjustable. As here shown, the base of the lamp socket is mounted on a carriage 39 having bearings 40 on opposite sides there- -of which receive guide rods 41 depending from a bracket 42 secured to the rear wall of the casing 1, the bearings 40 being ad justable' along the guide rods 41 and having set screws 43 by means of which the car- A i'iage 39.is held in its adjusted position.

f lenslO by means of the spherical reflector.a 44 located in the rear of the lamp with its The rays of light are reflected onto the axis alined with the focal axis ofthe lens, the focal point of the reflector being the focal pointof the lens 11, at which point the lamp or the filament thereof isalso located. The reector 44 is held at its marl .ring and the annular face, and the'ring be fing pivoted to theframe element by a pivot gin by rings 45, 46. arranged face to face and having at their inner margins diverg- .ing flanges 47, 48 arranged to form a V- sliapechannel, in which Athe edge of the reflector is located. The rings 45, 46 are supported on posts 49 .extending forwardly from `the rear wall of the casingl 1 and are secured thereto b screws 50 Dassin@ through il D D the rings and into the ends of the posts.

This headlight yis particularly advantageous in that a change of lensesll can be readily made, as it is oftentimes desirable to substitute an amber lens for a white lens.

Furthermore, owing to the arrangement of v the lens, the lamp and the reflector,'a maxi` mum light is obtained.

What I claim isz- 1. A' headlight comprising lens sup-- port, and means for detachably securing the lens to'the support comprising an element pivoted to the support at one side of the lens and movable in a direction crosswise of the face of thelens and having a latch at a point opposite its-pivot, and holding means associated with the 'support and located in position to receive the latch which is movable into and out of detachable engagement therewith, substantially as andvfor the purpose set forth. 2. A headlight comprising a easing, a lens,

land means for supporting the lens including a frame element having an annular face, a ring opposed to the annular face, the lens having its margin interposed between the` extending transversely f the fra-nie element whereby the ring move about its pivot in a j direction parallel to said annular face, andv securing means for the ringincluding a ment and a latch associated with the ring, substantially as. and for the purpose de-` scribed.. y

3. A headlight comprising ai casing, av lens, and lmeans for supporting the lens cornasr lico

holding part associated with the frame eleprising a frame element, a ring opposed to the frame element, the lens having a marginal. flange extending between the frame element and the ring, and securing means having a part thereofextending through the ring into the support across the edge of said margin, a part of'said securing means being a latch having an open ended slot and another part of said securing means having a pin associated with the support and ex# tending through theslot when the ring is in its operative position, thepin having spring means associated therewith and co-acting with the latchl to yieldingly press the ring toward the support, and the spring means being operable to relieve the 'latch of the tension of the spring means, substantially as and for the purpose specified.

4.`A headlight comprising a casing, a

.isc

lens, and means supporting the lens com j prising a frame'element, having an opening in which the lens is mounted, a ring opposed` to the frame element, the lens having a mar ginal fiange extending between the frame element and the ring, and spring means acting on the ring to press the same toward the frame element, the spring means .including a pin .extending transversely through the ring and into the frame element and having a head at its outer end, a 'cup slidably mounted on the pin and pressing against the ring, anda spring located in the cup and pressing at one end against the head and atits other end against the bottom of the cup, substantially as and for the purpose set forth.

5. A headlight comprising a casing, a

' lens, and means for-supporting the lens comprising a frame element having an opening in which the lens is mounted, a ring opposed to the frame element, the lens having a marginal flange. extending between the frame element andthe ring, and spring means acting on the ring to press the same toward the frame element, the spring means comprising a pin extending transversely through the 'ring and into the fr ame element, the` pin having a head at its outer end, asleeve encircling the pin andabutting against the head at one end and being secured at its other end to the ring, a cup encircling the sleeve and being open at its outer end, and

a spring encircling the sleeve within the cup and bearing at its outer end against the head and at its inner end against the bottom of the cup, substantially as andfor the purpose described.

6.V A headlight comprising a casing, a

lens, and means for supporting the lens com' prising a frame element having an opening in which the lens is mounted, a ring opposed to the frame element, the lens having a marginal flange .extending between the frame element and the ring, and spring means acting on the ring to press the same toward the frame element, the spring means including a pin extending transversely through the ring and into the frame element and having a head at its outer end, a cup mounted on the pin and pressing against the ring, and a spring located in the cup and 'pressing at one end against'the head and at its other end against the bottom of 4the cup, the cup having a laterally projecting flange at its outerA end substantially las and for the purpose specified.

7. A headlight ,comprising a casinghaving an opening in one side,.and a door for closing the open 'sidel of the casing including a body, a lens supported by the body, the

body having projecting spacing means' on its rear face, a frame element mounted on said spacing means and having a central opening, a second lens carried by the frame l element in the opening therein, and a ring for coacti-ng with said frame element, the second lens having a flange between the frame element and the ring, substantially as and for the ,purpose specified.

8. A headlight comprising acasing having an opening in one side, and a door for closingthe open side of the'casing and including a body, a lenssupported by the body, the body having projecting spacing means on its rear face, a frame element mounted on said spacing means and having a' cent-ral opening, a second lens having a flange between the vframe element and the ring, the ring being pivoted to the frame element by a pivot extending transversely through the ring and into the frame element whereby thering moves laterally relatively to the axis of the lens into and out of operative position, substantially as and for the purpose set forth.

9. `In a headlight, a casing open at one .I

side,l a door for the open side including a body and a ring shape member mounted on the .outer face of the body, spacing means projecting from the rear side ofthe body, a frame element mounted on the spacing l0. A1n a headlight, a casing, lmeans for.

supporting a lens `comprising alframe element having an opening, a lens mounted in said opening, a ring coacting with the frame element to hold the lens in position, the

lens having a iange extending between the ring and the frame element, the ring being pivoted to the frame element by a pivot extending transversely' through the ring and into the frame element and having an openended slot at a point diametrically opposite 'its pivot, and` arranged substantially concentric with said pivot, and a xed catch for entering the slot, lthe pivo't and vthe catch having spring means lassociated. therewith arranged to bear upon the outer face of the ring and press the same toward the frame element'and` thereby hold the lensin lposition, substantially as and for .the purpose speciiied.-

11. In a headlight,'light focusing means,

a lamp supportincluding a guide comprisy ing a pairof rods extending in a direction at a right angle tothe axis o fthelight focusing means, a carriage having bearings adjustably mounted onl the rods, means for iso i .tally as and orthe purpose set forth.

'holding theciifiag'e'in its adjusted position of Onondaga, andStte of New York, this*` along the rods, and a lamp socket supported 28th day of' October, 1914. by they oarriagei between the rods, substan-A FRANK BUCHANAN 1n testimony Whereof,.g loewe hereunto Vitnessesfsigned my name in thepresence .of two at; y S. DAVIS, testing Witnesses, at Syracuse, in the county F. B. PICKARD. 

